HP 8753E manual Units Terminator, Knob, Step Keys

Before you can modify a function, you must activate the particular function by pressing the corresponding front panel key or softkey. Then you can modify the value directly with the knob, the step keys, or the digits keys and a terminator.

If no other functions are activated, the knob moves the active marker.

hg64ey

Figure 6-4. Entry Block

Units Terminator

The units terminator keys are the four keys in the right cohunn of the keypad. You must use these keys to specify units of numerical entries from the keypad. A numerical entry is incomplete until a terminator is supplied. The analyzer indicates that an input is incomplete by a data entry arrow t pointing at the last entered digit in the active entry area. When you press the units terminator key, the arrow is replaced by the units you selected. The units are abbreviated on the terminator keys as follows:

m=	Giga/nano (109 / 10Bg)
IM,u=	Mega/micro (lo6 / 10B6)
Lk/m)=	kilo/milli (103 / 10-3)
Lxl]=	basic units: dB, dBm, degrees, seconds, Hz, or dB/GHz (may be used to terminate
	unitless entries such as averaging factor)

Knob

You can use the knob to make continuous adjustments to current measurement parameter values or the active marker position. Values changed by the knob are effective immediately, and require no units terminator.

Step Keys

You can use the step keys &) (up) and (lJ) (down) to step the current value of the active function up or down. The analyzer defines the steps for different functions No units terminator is required. For editing a test sequence, you can use these keys to scroll through the displayed sequence.

6-10 Application and Operation Concepts